资源描述：
《Photo-Luminescence and Possible Forsterite nanoparticles Model of Extended Red Emission》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、Astronomy&Astrophysicsmanuscriptno.Forste-nanoFebruary2,2008(DOI:willbeinsertedbyhandlater)Photo-LuminescenceandPossibleForsteritenanoparticlesModelofExtendedRedEmissionK.Koike1,H.Chihara2,4,C.Koike2,M.Nakagawa1,M.Okada3,M.Matsumura1,andJ.Takada31FacultyofEducati
2、on,KagawaUniversity,Takamatsu760-8522,Japane-mail:Koike@ed.Kagawa-u.ac.jp2KyotoPharmaceuticalUniversity,Kyoto607-8412,Japan3ResearchReactorInstitute,KyotoUniversity,Kumatori590-0499,Japan4DepartmentofEarthandSpaceScience,OsakaUniversity,Toyonaka,Osaka560-0043,Jap
3、anthedateofreceiptandacceptanceshouldbeinsertedlaterAbstract.PossibleforsteritenanoparticlemodeloftheExtendedRedEmission(ERE)isproposedonthebasisofphoto-luminescenceofforsteriteaftergamma-rayandneutronirradiation.Forsteriteexhibitsinterestingthermo-luminescencesp
4、ectrumsimilartoEREofRedRectangleafterirradiationinlowtemperature.Itisshownthattheforsteriteafterthermoluminescenceisoverexhibitsphoto-luminescence(PL)whenUltravioletrayisirradiated.ThestructureofPLspectrumisalmostsimilartothatofthermoluminescence.Inordertoexplain
5、smallvariationsofthepeakpositionofwavelengthofEREspectrum,possiblenanoparticlemodelofforsteriteisinvestigated.OurmodelisconsistenttotheISOobservationdatainnearandmiddleinfraredregion,whichsuggesttheexistenceofforsterite.Keywords.ISM:dust,extinction–ISM:general–IS
6、M:linesandbands1.IntroductionRecently,wehavefoundthattheforsteriteafterther-moluminescenceisoverexhibitsphoto-luminescence(PL)Extendedredemission(ERE)isabroademissionbandwhenultravioletray(UV)isirradiated.Thisfactseemstowithapeakwavelengthbetween600and850nm,andsu
7、ggestapossiblerealisticmechanismofERE.Thispaperwithawidthbetween60and120nmseeninmanydustyisconcerningtothisproblem.astrophysicalobjectssuchasreflectionnebulae,planetaryInterstellarandcircumstellarmatterisirradiatedbynebulae,HIIregions,halosofgalaxies,andevenintheh
8、ighenergyelectromagneticandcosmicrayparticlessuchDiffuseInterstellarMedium.TheobservationofEREinarXiv:astro-ph/0403540v123Mar2004asγrays,neutrons,protonsandheav
